It seems that 2H swords are meant to be a ranger weapon (consumes tons of stamina+only -5% mp) for those who want to swap their bow fast and get an insane power attack on a single target and ironically they don't have cleave like their 1H counterpart for balance purpose i guess.
The problem, though, is that Krom does not possess any elemental dmg and while in Mistlands it's not worth the pick and later on will probably get outpaced by Ashlands Slayer swords. Not to mention Mistwalker will be a no brainer there once more...